function uuid() {
    var s = [];
    var hexDigits = "0123456789abcdef";
    for (var i = 0; i < 36; i++) {
        s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
    }
    s[14] = "4";  // bits 12-15 of the time_hi_and_version field to 0010
    s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);  // bits 6-7 of the clock_seq_hi_and_reserved to 01
    s[8] = s[13] = s[18] = s[23] = "-";

    var uuid = s.join("");
    return uuid;
}

function displayColumn(a) {
    console.log($(a))
    var c = $(a).next().css("display");
    console.log(c)
    if (c == 'none') {
        $(a).next().css("display", "block");
    } else {
        $(a).next().css("display", "none")
    }
}

$(function () {
    // 获取本地存储对象
    var localStorage = window.localStorage;
    var confirmMID = localStorage.getItem("key");
    $.post("http://localhost:8081/study/nav", {
        confirmMID: confirmMID
    }, function (data) {
        console.log(data);
        if (data.success) {
                var chooseColumn = "#" + $("#chooseColumn").val();
                $("#navMain").html(data.nav);

                //选中当前页面
                $(chooseColumn).attr("class", "active");
                var display = $("#chooseColumn").attr("name");
                if (display == "block") {
                    console.log($(chooseColumn).parent().css("display"));
                    $(chooseColumn).parent().css("display", "block");
                }

        } else {
            alert(data.message);
            window.location.href = "html/login.html"
        }
    })

})
